Just had all the glass and a new "store front" with sliding glass doors installed in my 19th floor condo... Herzog did a nice job, real quality work. Guys were always on time and they took pride in their workmanship.

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I've found the folks at Herzog Glass to be extremely knowledgeable about all things glass. Knowing they've done the commercial glass work for some of the best-known landmark buildings in the Seattle area makes me amazed that they're also interested in my shower enclosure. It feels as though I can get celebrity-status glass work at reasonable residential prices. Highly recommend - especially for custom glass work.

I would highly recommend against using this company. They attempted to scam me.
It started when I called the manufacturer of the window that I needed replaced. It happened to be a rooftop hatch door that was made of an acrylic material. The company reported to me that the skylight/window cost was $550 + another $550 for crating and shipping from Canada. So now I know the parts cost.
I wasn't confident in my own ability to replace this type of a window so I also asked the company for a referral of someone who could do the installation for me. This is when I was introduced to Herzog Glass.
I contacted them and requested an appointment for an estimate. A man came out and was nice enough. Took some simple measurements of the window that needed replaced, and took a few photos. He then left and told me I would receive a quote soon by email. I sent along additional information on the skylight and photos of it that I had. I corresponded back and forth with Chris Bicknell several times. I pressed trying to find a ballpark non-binding idea of how much we were talking and he reported a ballpark figure of $2000. This included them purchasing the glass.
Several days later I received an official estimate for $2700. This again was including them purchasing the glass. My gut told me this was extremely high for what was being done. This would indicate that for labor and markup they were charging $1600. I went with my gut and asked for an explanation of the estimate.
I then received this breakdown back from Herzog:
"Thank you for the response and for expressing your concerns regarding the overall quoted price. After our site visit I sent our dimensioning information back to Dayliter for review. At first they were unable to confirm if the size we provided matched up with their product. The price I sent you included additional time to revisit the site for confirmation. Since providing the quote to you, Dayliter was able to look through their records and confirm so I can take those hours back out. "
Dome material: $1,292 (We have to put a markup on the material since we are taking responsibility for sizing, breakage etc.)
Glazing tape, sealant and consumables: $78.76
Labor: 2 glaziers for 5 hours each including travel, receiving, un-crating, removal, installation and disposal. 10 hours total at $95.34 per hour is $953.40.
Volume Driven Liability Insurance: $46.48
Total: $2,370.64
Revised Quoted Price: $2,370
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The fact that they could immediately drop the quoted price by $500 just because I questioned them made me feel even more uneasy.
So after another quote from another company and talking to the manufacturer again I decided to replace the window myself. I was able to receive, un-crate, and install the window in no more than an hour and a half. I had one person help me about half of that time. This is a far cry less than the 10 hours these "pros" were going to need. In addition to that there was no materials required. You simply unscrewed the frame, removed the old glass, and add the new. Herzog wanted almost $80 for tape, sealant, and consumables. Another baseless charge.
Long story short I saved myself $1200 or more by not doing business with this company. I recommend steering clear of them.